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Chapter Page 5 Machine Loading
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Blind holes burr clearance bushing plate cause chapter Chip disposal Cleveland Universal commercial Universal drill consider corner relief counterbore countersink definite designer's diameter dimension tolerance discussion dividing head division division-of-work decision drill bushing drill element drill head drill spindle drilled hole drilling operation eliminate enter essential example factors Figure finished fixed bushing fixture flipper bushing Head Company information items interchangeability internal concentric locating jamming jig designer large shop lots loading Machine decisions mechanism method multiple drill press number of different number of holes number of pieces ordinarily perform plan of procedure plate and adapter power feed practical problem progressive drill press purpose Radial head radial location radial-head reamer reaming Reliance Electric rough secondary operations sensitive feed setup shown in Fig slip bushing slip chuck small shop lots step drill surface tion Tool decisions top plate type of drill Universal drill jig Universal jig zero chip clearance